package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

@PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
    String password = employee.getPassword();
    //将前端传过来的密码进行md5加密处理
    password= DigestUtils.md5DigestAsHex(password.getBytes());
    //根据页面提交的用户名查询数据库
    LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
    lqw.eq(Employee::getUsername,employee.getUsername());
    Employee emp = employeeService.getOne(lqw);
    if (emp==null){
    return R.error("登录失败");
    }
    if (!emp.getPassword().equals(password)){
        return R.error("密码不正确");
    }
    if (emp.getStatus()==0){
        return R.error("账号已禁用");
    }
    request.getSession().setAttribute("employee",emp.getId());
    return R.success(emp);
}
@PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
       request.getSession().removeAttribute("employee");
        return R.success("退出成功");
}

@PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增数据：{}",employee.toString());
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
    Long empid = (Long) request.getSession().getAttribute("employee");
    employee.setCreateUser(empid);
    employee.setUpdateUser(empid);
    employeeService.save(employee);
    return R.success("增加成功");
}
@GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
    log.info("page = {},pageSize = {},name = {}" ,page,pageSize,name);
    //构造分页构造器
    Page pageInfo = new Page(page,pageSize);
    LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
    lqw.like(StringUtils.isNotEmpty(name),Employee::getName,name);
    lqw.orderByDesc(Employee::getUpdateTime);
    employeeService.page(pageInfo,lqw);
    return R.success(pageInfo);
}
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());

        Long empId = (Long)request.getSession().getAttribute("employee");
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if(employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }
}
